fix(Source-to-Sink): handle empty token list in PPI find method

- prevent runtime error when no tokens are found by using an empty array reference as a fallback
htrgouvea · Dec 16, 2024 · 57d02c5 · 57d02c5
1 parent ccf020a
commit 57d02c5
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/Zarn/Engine/Source_to_Sink.pm b/lib/Zarn/Engine/Source_to_Sink.pm
@@ -20,7 +20,7 @@ package Zarn::Engine::Source_to_Sink {
         );
 
         if ($ast && $rules) {
-            foreach my $token (@{$ast -> find('PPI::Token')}) {
+            foreach my $token (@{$ast -> find('PPI::Token') || []}) {
                 foreach my $rule (@{$rules}) {
                     my @sample   = $rule -> {sample} -> @*;
                     my $category = $rule -> {category};
@@ -63,4 +63,4 @@ package Zarn::Engine::Source_to_Sink {
     }
 }
 
-1;
+1;